According to Warren Lewis, his brother received his first letter from Joy on Jan. 10, 1950 (reprinted in Lyle Dorsett's biography of Joy, And God Came In, p. 70; see also in same source her letter of Jan 25, 1953, pp. 87-89 for her insightful account of spending Christmas 1952 with the Lewises). Highlighted entries below provide a quick overview of Joy's struggle with cancer.

SOURCES:

Lewis, C. S. Letters of C. S. Lewis. Ed. Warren H. Lewis. New York: Harcourt, Brace, and Jovanovich, 1966. (LL below)
-----------. Letters to An American Lady. Ed. Clyde Kilby. Grand Rapids, Michigan: Eerdmans, 1967. (LAL below)
-----------. They Stand Together: The Letters of C. S. Lewis to Arthur Greeves (1914-1963).. Ed. Walter Hooper. New York: Macmillan, 1979. (TST below)
Lewis, Warren H. Brothers and Friends: The Diaries of Major Warren Hamiliton Lewis.. Eds. Clyde S. Kilby and Marjorie Lamp Mead. New York: Ballantine, 1982. (WLD below)
Vanauken, Sheldon. A Severe Mercy. San Francisco: Harper and Row, 1977. (SM below)


1. TST, Mar. 25, 1954, p. 529.
2. SM, May 8, 1955, pp. 209-10.
3. TST , Oct. 30, 1955, pp. 534-35.
4. WLD, Nov. 5, 1956, pp. 273-74.
5. TST, Nov. 25, 1956, pp. 542-43.
6. LAL, Jan. 17, 1957, p. 65.
7. LAL, Feb. 17, 1957, pp. 65-66.
8. LL, Mar. 6, 1957, p. 275.
9. SM, Mar. 7, 1957, p. 225.
10. LL, Mar. 16, 1957, p. 275.
11. WLD, Mar. 21, 1957, pp. 274-75.
12. TST, Apr. 5, 1957, p. 543.
13. LAL, Apr. 13, pp. 66-67.
14. LL, May 8, 1957, p. 276.
15. LL , May 12, 1957, p. 276.
16. LAL, June 18, 1957, p. 67.
17. LAL, July 3, 1957, pp. 67-68.
18. LAL, Aug 12, 1957, p. 68.
19. LL, Aug. 24, 1957, p. 277.
20. LAL, Oct. 20, 1957, p. 69.
21. LAL, Nov. 3, 1957, pp. 69-70.
22. LL, Nov. 6, 1957, p. 280.
23. TST, Nov. 27, 1957, p. 545.
24. SM, Nov. 27, 1957, pp. 227-28.
25. LAL, Nov. 30, 1957, p. 70.
26. LAL, Jan 14, 1958, p. 71.
27. LAL, Feb. 22, 1958, pp. 71-72.
28. TST, Mar. 26, 1958, p. 546.
29. LAL, Mar. 31, 1958, pp. 73-74.
30. TST, Apr. 2, 1958, p. 547.
31. LAL, Apr. 15, 1958, p. 74.
32. SM, Apr. 26, 1958, p. 228.
33. TST, May 30, 1958, p. 547.
34. LAL, June 6, 1958, pp. 75-76 (written by Joy).
35. WLD, Nov. 13, 1958, p.275.
36. SM, Dec. 15, 1958, p. 228.
37. LAL, Dec. 25, 1958, pp. 79-80.
38. LAL, Jan. 26, 1959, pp. 80-81.
39. LL, Apr. 29, 1959, p. 285.
40. LAL, May 6, 1959, pp. 81-82.
41. LAL, June 7, 1959, pp. 83-84.
42. LAL, July 7, 1959, pp. 84-85.
43. LAL, Oct. 18, 1959, pp. 87-88.
44. LL, Dec. 3, 1959, pp. 289-90.
45. LAL, Dec. 22, 1959, pp. 88-89.
46. LAL, Feb. 13, 1960, pp. 89-90.
47. TST, Mar. 12, 1960, pp. 552-53.
48. SM, Apr. 16, 1960, p. 228.
49. LAL, Apr. 19, 1960, pp. 90-91.
50. WLD, June 21, 1960, pp. 277-78.
51. WLD , July 8, 1960, p. 278.
52. WLD , July 13, 1960, pp. 279-80. Death of Joy.
53. LAL, July 15, 1960, p. 91.
54. LL, July 15, 1960, p. 293 (incorrectly dated June 15).
55. WLD, July 18, 1960, p. 280.
56. TST, Aug. 30, 1960, pp. 553-54.
57. SM, Sept. 23, 1960, p. 229.
58. LAL, Sept. 24, 1960, pp. 91-92.
59. LL, Dec. 3, 1961, p. 300.
60. LL , Dec. 20, 1961, p. 301.
61. LAL, May 4, 1962, p. 103.
62. LAL, July 3, 1962, pp. 104-105.

For more on Warren Lewis' view of Joy, see LL, pp. 22-24. For more on C. S. Lewis' view of Joy see A Grief Observed and several of his Poems.